Casio Man Watch Model MTGB2000D-1A

A Carbon Core Guard structure combines with the Metal Core Card structure to create a new Dual-Core Guard structure, which houses a module protected by an integrated carbon monocoque case and exterior metal parts. The New Layered Composite Bands of these models use hollow metal segments that encase fine resin parts, providing the elegant feel of metal along with a weight that is 15% less than that of previous models. The metal frames have a new type of slide lever mechanism that makes band replacement quicker and simpler, and metal is also used for the outer case sides. These models maintain a constant Bluetooth connection with a smartphone running the G-SHOCK Connected app to obtain accurate time information from an on-line time server for automatic time adjustment. MULTIBAND 6 automatically adjusts time settings based on the reception of one of six calibration signals around the globe when you are within the range of a signal, even if the connection with a smartphone is not possible.

Stainless steel case & band
Carbon Core Guard structure
Sapphire Glass, non-reflective
Neobrite
TRIPLE G RESIST (Shock resistant, Centrifugal force resistant, Vibration resistant)
Spherical Glass
Screw Lock Crown
200-meter water resistance
Solar-powered
LED light (Super Illuminator) Afterglow
Time calibration signal reception
Wireless linking using Bluetooth
Hand shift feature
Dual time: 27 time zones
1-second stopwatch
Countdown timer
Daily alarm
Power Saving
Full auto-calendar (to year 2099)
Date display
Day indicator
Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)
Approx. battery operating time after charge: 5 months (with normal use) 29 months (when stored in total darkness with the power save function on)
Size of case : 55.1×51×15.9mm
Total weight : 127g